The Commission for Air Quality Management (CAQM) has once again implemented the Graded Response Action Plan (GRAP) Stage III in the National Capital Region (NCR) as a measure to curb the increasing pollution levels. As per the new restrictions, BS-III petrol and BS-IV diesel vehicles will not be allowed to ply in Delhi NCR. This move is expected to lower the Air Quality Index numbers and improve the air quality in the region. Delhi, Delhi Air Pollution, Delhi Air Quality, Delhi Vehicle Ban, Grap 3, BS 3 vehicle ban, BS 4 vehicle ban, Car News News, Times Now